It uses a built in filter list to block many common ad requests and hides many matching ad spaces on web pages. Sites change often, so results can vary.
Frequently asked questions
Quick answers about Ad Cleanser.
Find help with blocking, exceptions, the new tab, search, privacy, and removal.
Open the Ad Cleanser toolbar icon while you are on the site. Turn on Allow this site. The domain is saved to your allowlist.
Yes. Use Allow this page in the toolbar. That choice applies to the exact page address instead of the full domain.
Open Ad Cleanser settings from the toolbar. You can add or remove full site and exact page entries there.
Yes. Open Personalize on the new tab to show or hide shortcuts and stories, and to choose an automatic, light, or dark appearance. Shortcut tiles can also be added, edited, or removed.
Firefox may show its own prompt asking whether you want the extension search provider. You can accept it or keep your current choice. Browser search settings remain available later.
Ad Cleanser uses local browser storage for preferences and sends technical usage, attribution, and page visit signals to its service. The privacy policy gives the full plain language list.
Open the uninstall help page for steps on Firefox, Chrome, or Edge. Removing the extension also removes its local settings from that browser profile.